TITLE

Surface-limited release of deuterium from iron and the effect of surface oxygen

AUTHOR(S)
Wampler, W. R.
PUB. DATE
February 1986
SOURCE
Applied Physics Letters;2/10/1986, Vol. 48 Issue 6, p405
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The surface-limited release of deuterium from solution in polycrystalline iron was measured in ultrahigh vacuum using nuclear reaction analysis and ion implantation with surface characterization by Auger electron spectroscopy. For a bare iron surface the magnitude and temperature dependence of the release rate are quantitatively predicted by a model in which the rate limiting step is the recombination and desorption of deuterium chemisorbed on the surface. The release rate decreased approximately linearly with oxygen coverage up to a cutoff at about 0.4 monolayer.
ACCESSION #
9819056

 

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